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Dense optical flow software to quantify cellular contractility.

Sérgio Scalzo1, Marcelo Q L Afonso2, Néli J da Fonseca2,3

  • 1Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.

Cell Reports Methods
|April 27, 2022
PubMed
Summary
This summary is machine-generated.

CONTRACTIONWAVE software analyzes cardiomyocyte contractility using optical flow from videomicroscopy images. This tool quantifies cellular dynamics for drug discovery and disease modeling.

Keywords:
Python softwarecardiomyocytecontractility parameterscontraction average speediPSC-CMsimage processingoptical flowshortening area

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Area of Science:

  • Cardiology
  • Cell Biology
  • Biophysics

Background:

  • Cell membrane deformation is crucial in physiological processes, particularly for cardiomyocyte function.
  • Existing methods for assessing cardiomyocyte contractility lack a unified computational framework for data acquisition, processing, and quantification.
  • Investigating cellular dynamics requires robust tools for analyzing complex biological data.

Purpose of the Study:

  • To develop a high-performance computational framework for analyzing cardiomyocyte contractility.
  • To provide a single platform for acquiring, processing, and quantifying cellular dynamics from videomicroscopy.
  • To enable straightforward analysis of cell membrane deformation in cardiac research.

Main Methods:

  • Development of CONTRACTIONWAVE software using Python programming language.
  • Utilizing optical flow analysis on images acquired via videomicroscopy.
  • Processing large data image files to extract contractility parameters.

Main Results:

  • CONTRACTIONWAVE successfully processed image data and quantified contractility parameters.
  • Validation using neonatal, adult, and human-induced pluripotent stem-cell-derived cardiomyocytes demonstrated software efficacy.
  • The software accurately assessed contractility changes in response to drug treatments.

Conclusions:

  • CONTRACTIONWAVE is an effective tool for studying cardiac cellular contractility.
  • The software aids in examining disease models and performing pharmacological and toxicology screening.
  • CONTRACTIONWAVE facilitates advancements in drug discovery and cardiac research.